People who are thinking 3 players on the field at once ins't enough think again! We went down to John's place last year to try F4 (4 players on the field) and it was mental (in a good way)! You're constantly rolling on/off the field and always smiling - winning or losing! 3 should give you a little more breathing room!
When we played, there wasn't one team on the day that managed to push down to the other team's 25 yard line (or whatever it is) and stop them spawning, so that doesn't really factor in the game. The focus is around the buzzer and scoring points as the further you push, the further back you have to walk when eliminated....which then leaves only 2 on the field until you get another guy out! You need to be organised in the pits, calm on the field and always keeping an eye on the scoreboard to see if you still control the middle buzzer!
You'll have great fun playing it.....we're just deciding what team(s) to put in Rich, will be back to you shortly.